Jan Adrianus Herklots (born 17 August 1820 in Middelburg, Zeeland; died 31 March 1872 in Zoeterwoude) was a Dutch zoologist whose main areas of research were carcinology and the echinoderms . Herklots studied medicine and biology at the University of Leiden. In 1846 he was appointed as curator of invertebrates at the Rijksmuseum van Natuurlijke Historie in Leiden, succeeding Wilhem de Haan, a position which he held until his death in 1872, his successor was Christiaan Karel Hoffmann. He died in 1872 after a long illness, probably tuberculosis.